CN114473397B - Method for machining core component of drum brake - Google Patents
Method for machining core component of drum brake Download PDFInfo
- Publication number
- CN114473397B CN114473397B CN202111632127.1A CN202111632127A CN114473397B CN 114473397 B CN114473397 B CN 114473397B CN 202111632127 A CN202111632127 A CN 202111632127A CN 114473397 B CN114473397 B CN 114473397B
- Authority
- CN
- China
- Prior art keywords
- processing
- arc
- clamping
- positioning
- semi
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/18—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass brake shoes
Abstract
The invention relates to a drum brake core component processing method, firstly, preparing parts required by brake shoe processing; welding and fixing the arc-shaped wing plates and the arc-shaped panel in a punching and welding mode, fixing the two arc-shaped wing plates on the inner arc surface of the arc-shaped panel after welding, punching and welding a brake shoe reinforcing plate between the two arc-shaped wing plates, and finally additionally arranging a reinforcing pin shaft between the two arc-shaped wing plates to form a semi-finished shoe product; and sequentially conveying the semi-finished horseshoe product to five processing devices, and performing drilling, boring, spot facing and spring mounting hole drilling on the upper end surface and the lower end surface of the semi-finished horseshoe product to finish processing. According to the processing method, the brake shoe is processed by a fixing mode of punching and welding, five processes of processing and five different processing tools, the whole processing process is simple, the clamping is convenient, the produced brake shoe is simple in structure, light in weight and high in strength, and the development requirement of light weight is met.
Description
Technical Field
The invention relates to the field of brake machining, in particular to a method for machining a core component of a drum brake.
Background
The brake shoe is a friction coupling part of a drum brake, bears the thrust of an actuator, the normal force and the tangential force of a brake drum and the bearing counter force, and has proper rigidity. The brake shoe should have, in addition to the strength and rigidity required as a member, as high and stable friction coefficient as possible, and appropriate wear resistance, heat radiation, heat capacity, and the like.
For example, in patent CN207900160U, a drum brake shoe is mentioned, comprising: the two arc rib plates are fixedly connected with the arc panel and are perpendicular to the arc panel; the first boss is fixedly arranged on the arc-shaped panel and fixedly connected with the arc-shaped rib plate; at least one arc-shaped rib plate is provided with a weight reduction groove, and the weight reduction groove is arranged on the side surface of the arc-shaped panel; the strengthening rib, the one end and the arc panel fixed connection of strengthening rib, the other end and the arc gusset fixed connection of strengthening rib.
The brake shoe with the structure improves the structural strength of the shoe, but another problem is caused therewith, the thickness of each part of the whole structure of the brake shoe is relatively thick, particularly at the positions of two arc-shaped rib plates, the thickness of each part is relatively thick, and the corresponding weight is relatively heavy in order to improve the structural strength.
Disclosure of Invention
The invention aims to provide a drum brake core component processing method which can produce brake shoes with high structural strength and light weight.
In order to solve the technical problems, the technical scheme of the invention is as follows: the method for machining the core component of the drum brake has the innovation points that: comprises the following steps
S1: firstly, preparing parts required by processing a brake shoe, wherein the parts comprise one arc panel, a pair of arc wing plates, two reinforcing pin shafts and a brake shoe reinforcing plate, which form the brake shoe;
s2: welding and fixing the arc-shaped wing plates and the arc-shaped panel in a punching and welding mode, fixing the two arc-shaped wing plates on the inner arc surface of the arc-shaped panel after welding, punching and welding a brake shoe reinforcing plate between the two arc-shaped wing plates, and finally additionally arranging a reinforcing pin shaft between the two arc-shaped wing plates to form a semi-finished shoe product;
s3: the method comprises the following steps of conveying a semi-finished horseshoe product to a first processing device for primary processing, clamping and fixing the semi-finished horseshoe product through a first processing tool in the first processing device, processing the upper end face, the lower end face and the outer arc face of the semi-finished horseshoe product by using a cutter in the first processing device after clamping, processing the upper end face and the lower end face of the semi-finished horseshoe product in two steps, processing the upper end face or the lower end face of the semi-finished horseshoe product, turning the semi-finished horseshoe product, and processing the other end face of the semi-finished horseshoe product;
s4: conveying the semi-finished horseshoe product to a second processing device for secondary processing, clamping and fixing the semi-finished horseshoe product through a second processing tool in the second processing device, and drilling holes in the outer arc surface of the semi-finished horseshoe product by using a cutter in the second processing device after clamping;
s5: conveying the semi-finished horseshoe product to a third processing device for processing for three times, clamping and fixing the semi-finished horseshoe product through a third processing tool in the third processing device, and boring holes in the outer arc surface of the semi-finished horseshoe product by using a cutter in the third processing device after clamping;
s6: conveying the horseshoe semi-finished product to a second processing device for processing for four times, clamping and fixing the horseshoe semi-finished product through a fourth processing tool in the second processing device, and facing each hole of the inner cambered surface of the horseshoe semi-finished product flat by using a cutter in the second processing device after clamping;
s7: and conveying the horseshoe semi-finished product to a fifth processing device for five times of processing, clamping and fixing the horseshoe semi-finished product through a fifth processing tool in the fifth processing device, drilling spring mounting holes in two sides of the horseshoe semi-finished product by using a cutter in the fifth processing device after clamping, and finishing processing.
Furthermore, the shoe semi-finished product comprises an arc-shaped panel and a pair of arc-shaped wing plates which are distributed on the inner side wall of the arc-shaped panel in parallel, a plurality of first punching and welding bosses which are distributed in parallel are arranged at the welding position of the arc-shaped wing plates and the arc-shaped panel, and the first punching and welding bosses are distributed on the sides, far away from each other, of the two arc-shaped wing plates;
the semi-finished shoe further comprises a pair of reinforcing pin shafts distributed on two sides of the arc-shaped wing plates and a brake shoe reinforcing plate located between the two arc-shaped wing plates, wherein two through holes for the reinforcing pin shafts to penetrate through are formed in the two arc-shaped wing plates, the brake shoe reinforcing plate is located in the middle of the arc-shaped panel, two sides of the brake shoe reinforcing plate are fixedly stamped with the two arc-shaped wing plates respectively, and a plurality of second stamping bosses distributed in parallel are arranged at the welding position of the brake shoe reinforcing plate and the arc-shaped wing plates.
The first processing tool comprises a first processing base which is horizontally arranged, a first center post is installed in the center of the first processing base, a first clamping plate is connected to the top end of the first center post, four first upper clamping cylinders are installed on the first clamping plate, first upper clamping hooks which are in one-to-one correspondence with the first upper clamping cylinders are installed at the bottom end of the first clamping plate, the first upper clamping hooks are hinged to the first clamping plate and driven by the first upper clamping cylinders to swing, four first lower clamping cylinders are installed at the bottom end of the first processing base, first lower clamping hooks which are in one-to-one correspondence with the first lower clamping cylinders are installed on the upper end face of the first processing base, the first lower clamping hooks are hinged to the first processing base and driven by the first lower clamping cylinders to swing, the first upper clamping hooks and the first lower clamping hooks are matched together to clamp a shoe workpiece, first positioning assemblies are installed on two sides of the first processing base, each first positioning assembly comprises a first positioning seat group which is installed on the first processing base, and two positioning blocks are symmetrically distributed on the first positioning seat, and the first positioning blocks are symmetrical with first positioning blocks, and the first positioning blocks are distributed symmetrically, and the central axis of the first positioning seat.
Further, the second processing tool comprises a second processing base which is horizontally arranged, a second center base is installed at the center of the second processing base, a second center cylinder is installed on the second center base, a second clamping plate is connected to the top end of a piston rod of the second center cylinder, the second clamping plate is driven by the second center cylinder to be close to or far away from the second processing base, second supporting bosses are respectively arranged on two sides of the second center base and are arc-shaped, gaps are reserved between two sides of the two second supporting bosses, a pair of second positioning columns which are distributed in parallel are further installed in the gaps of the two second supporting bosses, each second positioning column is composed of an upper cylindrical positioning section and a lower cylindrical positioning section which are connected in sequence, the diameter of the positioning section on the upper side is smaller than that of the positioning section on the lower side, the two second positioning columns located in the same gap are respectively large and small, the diameter of the second positioning column is larger than that of the second positioning columns, and the second positioning columns located in the two gaps are respectively staggered.
Furthermore, processing frock third includes third processing base, third processing base is L form by the connection of the first base segmentation that a level set up and the second base segmentation of a vertical setting and forms, is connected with deep floor between first base segmentation and second base segmentation, installs two third reference columns that distribute from top to bottom on the second base segmentation, the third reference column is formed by two third location segmentations that the level distributes side by side jointly connecting, and one of them third location segmentation links to each other with the second base segmentation, and the diameter of the third location segmentation that links to each other with the second base segmentation is greater than the diameter of another third location segmentation, still is provided with the third tight board in between two third reference columns, installs the tight post in third tight board in third tight.
Furthermore, the fourth processing tool comprises a second processing base arranged horizontally, a second supporting seat is installed on the upper end face of the second processing base, an arc-shaped groove attached to the horseshoe workpiece is formed in the upper end face of the second supporting seat, second positioning columns are arranged on two sides of the second supporting seat respectively, the second positioning columns are driven by a second positioning cylinder to be close to or far away from the second processing base, a second clamping seat is arranged beside the second supporting seat, a second clamping cylinder is installed on the second clamping seat, the top end of the second clamping cylinder is connected with a second clamping block, and the second clamping block is driven by the second clamping cylinder to be close to or far away from the second supporting seat.
Furthermore, the processing tool five comprises a fifth processing base arranged horizontally, a pair of fifth clamping assemblies distributed in parallel is mounted on the fifth processing base, each fifth clamping assembly comprises a fifth central column, fifth clamping cylinders are mounted on the fifth central columns, the top ends of the fifth clamping cylinders are connected with a fifth clamping plate, the fifth clamping plates are driven by the fifth clamping cylinders to be close to or far away from the fifth processing base, fifth jacking seats are respectively mounted on two sides of the fifth central columns, fifth jacking columns extending towards the fifth direction are mounted on the fifth jacking seats, fifth positioning seats are respectively mounted on the two remaining sides of the fifth central columns, two side faces, close to the two fifth jacking columns, of the fifth positioning seats are respectively an arc-shaped face sunken inwards towards the fifth positioning seats, and two arc-shaped faces on the same side of the two fifth positioning seats are matched together to realize positioning of the same horseshoe workpiece.
The invention has the advantages that: according to the processing method, the brake shoe is processed by a fixing mode of punching and welding, five processes of processing and five different processing tools, the whole processing process is simple, the clamping is convenient, the produced brake shoe is simple in structure, light in weight and high in strength, and the development requirement of light weight is met.
The brake shoe produced by the processing method realizes the connection between the arc wing plate and the arc panel in a fixing mode of punching and welding, realizes the fixation in a mode of matching with a plurality of first punching and welding bosses, reduces welding points on the basis of ensuring the stable connection between the arc wing plate and the arc panel, and reduces the thickness of the arc wing plate and correspondingly reduces the whole weight by adopting a mode of matching two arc wing plates with the reinforcing pin shaft.
A brake shoe reinforcing plate is additionally arranged between the two arc wing plates and is fixed in a matched stamping and welding mode, the structural strength of the two arc wing plates is further improved, and the thickness of the arc wing plates can be further reduced.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic view of a first machining tool in the invention.
Fig. 2 is a schematic view of a second machining tool in the invention.
Fig. 3 is a schematic view of a third processing tool in the invention.
Fig. 4 is a schematic view of a fourth processing tool in the invention.
Fig. 5 is a schematic view of a fifth processing tool in the invention.
Fig. 6 is a schematic view of a brake shoe according to the present invention.
Detailed Description
The following examples will provide those skilled in the art with a more complete understanding of the present invention, but are not intended to limit the scope of the present invention to the examples.
The drum brake core component processing method is realized by the following steps:
s1: firstly, parts required by the processing of the brake shoe are prepared, wherein the parts comprise one arc panel, one pair of arc wing plates, two reinforcing pin shafts and a brake shoe reinforcing plate, which form the brake shoe.
S2: the arc-shaped wing plates and the arc-shaped panel are welded and fixed in a punching and welding mode, after welding, the two arc-shaped wing plates are fixed on the inner arc surface of the arc-shaped panel, then the brake shoe reinforcing plate is punched and welded between the two arc-shaped wing plates, and finally the reinforcing pin shaft is additionally arranged between the two arc-shaped wing plates to form a semi-finished shoe product.
As can be known from the schematic diagram shown in fig. 6, the semi-finished shoe includes an arc panel 1, a pair of arc wing plates 12 distributed in parallel is connected to the inner side wall of the arc panel 1, the arc wing plates 12 are fixedly welded to the arc panel 1, and a plurality of first welding bosses 13 distributed in parallel are provided at the welding positions of the arc wing plates 12 and the arc panel 1, the cross sections of the first welding bosses 13 are triangular, and the first welding bosses 13 are distributed at the sides of the two arc wing plates 12 away from each other.
Be provided with a pair of reinforcing pin 14 that distributes in arc pterygoid lamina both sides between two arc pterygoid laminas 12, all open two through-holes that hold reinforcing pin 14 and pass simultaneously on two arc pterygoid laminas 12, strengthen the realization behind the through-hole on 14 the two arc pterygoid laminas of round pin axle through two arc pterygoid laminas 12 to two arc pterygoid laminas 12 relatively fixed, reinforcing pin axle 14's design also can play a spacing effect to the relative position of two arc pterygoid laminas 12.
A brake shoe reinforcing plate 15 is further arranged between the two arc-shaped wing plates 12, the brake shoe reinforcing plate 15 is located in the middle of the arc-shaped panel 1, two sides of the brake shoe reinforcing plate 15 are fixedly stamped and welded with the two arc-shaped wing plates 12 respectively, a plurality of second stamping and welding bosses 16 distributed in parallel are arranged at the welding position of the brake shoe reinforcing plate 15 and the arc-shaped wing plates 12, and the cross sections of the second stamping and welding bosses 16 are triangular. The second reinforcing component is designed by additionally arranging a brake shoe reinforcing plate 15 between the two arc wing plates 12 and fixing the brake shoe reinforcing plate in a manner of being matched with a punching and welding mode, so that the structural strength of the two arc wing plates 12 is further improved, the thickness of the arc wing plates 12 can be further reduced, and the weight is reduced.
To the semi-manufactured improvement of horseshoe, adopt the fixed mode of impulse welding between arc pterygoid lamina 12 and the arc panel 1, and the mode of a plurality of first impulse welding bosss 13 of cooperation realizes fixedly, guarantee that arc pterygoid lamina 12 is connected on the firm basis with arc panel 1, reduce the welding point, relative can alleviate certain weight, in addition, adopt two arc pterygoid lamina 12 and strengthen 14 complex modes of round pin axle, thereby arc pterygoid lamina 12's thickness has been reduced, corresponding just also has alleviateed holistic weight, realize the lightweight.
S3: the method comprises the steps of conveying a semi-finished horseshoe product to a first processing device for primary processing, clamping and fixing the semi-finished horseshoe product through a first processing tool in the first processing device, processing the upper end face, the lower end face and the outer arc face of the semi-finished horseshoe product by using a cutter in the first processing device after clamping, processing the upper end face and the lower end face of the semi-finished horseshoe product in two steps, processing the upper end face or the lower end face of the semi-finished horseshoe product, turning the semi-finished horseshoe product, and processing the other end face of the semi-finished horseshoe product.
As can be known from the schematic diagram shown in fig. 1, the first processing tool includes a first processing base 3 horizontally arranged, the first processing base 3 is disc-shaped, a first central column 31 is installed at the central position of the first processing base 3, a first clamping plate 31 is connected to the top end of the first central column 31, four first upper clamping cylinders 33 are installed on the first clamping plate 31, every two first upper clamping cylinders 33 are a group and commonly matched to clamp the same shoe workpiece, first upper clamping hooks corresponding to the first upper clamping cylinders 33 are further installed at the bottom end of the first clamping plate 31, the first upper clamping hooks are hinged to the first clamping plate 31 and driven by the first upper clamping cylinders to swing, and the matching is specifically: the middle position of the first upper clamping hook is hinged with the first clamping plate 31, a piston rod of the first upper clamping cylinder 33 penetrates through the first clamping plate 31 and then is hinged with the tail position of the first upper clamping hook, the upper clamping hook is pushed to swing up and down along a hinged point of the first upper clamping hook and the first clamping plate 31, and a hook-shaped structure used for clamping a horseshoe workpiece is arranged at the front position of the first upper clamping hook.
Still install four first tight cylinders of clamp down in the bottom of first processing base 3, still install on the up end of first processing base 3 with the tight cylinder of first clamp down the tight hook of first clamp one-to-one, first tight hook of clamp is articulated with first processing base 3 seat down to swing by the tight cylinder drive of first clamp down, the swing structure and the principle of first tight hook of clamp down are the same with the swing structure and the principle of first tight hook of clamp down, do not just detailed again here, press from both sides tight hook and first clamp down the tight hook cooperation realization and press from both sides tightly the horseshoe work piece through first last tight hook of clamp down. The shoe workpiece is clamped through the matching of the first upper clamping hook and the first lower clamping hook, the whole clamping process is very convenient, any direct connecting piece is not needed for the shoe workpiece, the whole installation and disassembly processes can be realized only through the matching of the clamping cylinders, the convenience is very high, the time and the labor are saved, and the clamping efficiency is greatly improved.
First positioning components are further mounted on two sides of the first central column 31 on the first processing base 3, each first positioning component comprises a first positioning seat 34 mounted on the first processing base 3, first positioning columns 35 and first clamping blocks 36 which are distributed in parallel are mounted on the first positioning seats 34, the first positioning columns 35 and the first clamping blocks 36 in the two first positioning components are symmetrically distributed by taking the central axis of the first central column 31 as a symmetry point, namely, the first positioning columns 35 in one first positioning component and the first clamping blocks 36 in the other first positioning component are communicated and matched to realize positioning of the same horseshoe workpiece, each first positioning column 35 is cylindrical, and each first clamping block 36 is 7-shaped. To first locating component's design, adopt the cooperation of first locating column 35, first fixture block 36 to can realize the location and the auxiliary stay to the both sides of horseshoe work piece, come the location to horseshoe work piece one side through first locating column 35, guarantee the fixed of the position of horseshoe work piece, come to assist the limit support to the opposite side of horseshoe work piece through first fixture block 36, further guarantee the position of horseshoe work piece.
When the processing frock of utilizing first kind of structure carries out the clamping to the horseshoe work piece, at first, will treat the horseshoe work piece of processing and place on first processing base 3, then support one side of horseshoe work piece on first locating column 35, the opposite side of horseshoe work piece carries out auxiliary stay through first fixture block 36, then the work of tight jar 33, the tight hook of first clamp down is pressed from both sides by first last clamp respectively to the drive is first to press from both sides tight hook, the tight hook of first clamp down swings to come to press from both sides tightly the horseshoe work piece jointly, accomplished the clamping to the horseshoe work piece.
S4: and conveying the semi-finished horseshoe product to a second processing device for secondary processing, clamping and fixing the semi-finished horseshoe product through a second processing tool in the second processing device, and drilling holes in the outer arc surface of the semi-finished horseshoe product by using a cutter in the second processing device after clamping.
As can be seen from the schematic diagram shown in fig. 2, the second processing tool includes a second processing base 6 horizontally arranged, the second processing base 6 is in a disc shape, a second center base 61 is installed at the center position of the second processing base 6, a second center cylinder 62 is installed on the second center base 61, a second clamping plate 63 is connected to the top end of the piston rod of the second center cylinder 62, the second clamping plate 63 is fixed to the piston rod of the second center cylinder 62 through a threaded connection, and the second clamping plate 63 is driven by the second center cylinder 62 to approach or separate from the second processing base 6.
Two sides of the second center base 61 are respectively provided with a second supporting boss 64, the second supporting boss 64 is arc-shaped, the outer arc-shaped surface of the second supporting boss 64 is attached to the outer circumferential wall of the second processing base 6, a gap is reserved between the two sides of the two second supporting bosses 64, a pair of second positioning columns which are distributed in parallel are further mounted at the gap of the two second supporting bosses 64, each second positioning column is composed of an upper cylindrical positioning section and a lower cylindrical positioning section which are sequentially connected, the diameter of the positioning section positioned on the upper side is smaller than that of the positioning section positioned on the lower side, the two second positioning columns positioned at the same gap are respectively a second positioning column large 66 and a second positioning column small 65, the diameter of the lower positioning section of the second positioning column large 66 is larger than that of the lower positioning section of the second positioning column small 65, the diameter of the upper positioning section of the second positioning column large 66 is larger than that of the upper positioning section of the second positioning column small 65, the second positioning columns large 66 and the second positioning columns small 65 which are positioned in the two gaps are respectively staggered, so that workpieces are positioned on two sides of the same positioning column by using a fourth positioning column large 66 and a second positioning column small positioning column 65.
When the machining tool with the second structure is used for clamping a shoe workpiece, firstly, the shoe workpiece to be machined is placed on the second supporting boss 64, then two sides of the shoe workpiece are respectively abutted to the upper positioning section of the second positioning column 66 and the upper positioning section of the second positioning column 65, so that the shoe workpiece is positioned, and finally, the second central cylinder 62 is used for driving the second clamping plate 63 to move downwards to clamp the shoe workpiece, so that the shoe workpiece is clamped.
S5: and conveying the semi-finished horseshoe product to a third processing device for processing for three times, clamping and fixing the semi-finished horseshoe product through a third processing tool in the third processing device, and boring holes in the outer arc surface of the semi-finished horseshoe product by using a cutter in the third processing device after clamping.
As can be known from the schematic diagram shown in fig. 3, the third processing tool includes a third processing base, the third processing base is formed by connecting a first base segment 9 horizontally arranged and a second base segment 91 vertically arranged in an L-shape, a reinforcing rib plate 92 is connected between the first base segment 9 and the second base segment 91, the reinforcing rib plate 92 is in a triangular shape, two side surfaces of the reinforcing rib plate 92 are respectively connected and fixed with the first base segment 9 and the second base segment 91, the first base segment 9 and the second base segment 91 are connected through the design of the reinforcing rib plate 92, so that a reinforcing structure is realized, and the structural strength of the whole third processing base is ensured.
Two third positioning columns 93 which are vertically distributed are arranged on the second base section 91, the diameter of the third positioning column which is positioned on the upper side is larger than that of the third positioning column which is positioned on the lower side, the third positioning column 93 is formed by connecting two third positioning sections which are horizontally distributed in parallel, one of the third positioning sections is connected with the second base section 91, the diameter of the third positioning section which is connected with the second base section 91 is larger than that of the other third positioning section, a third tightening plate 94 is further arranged between the two third positioning columns 93, a third tightening column 95 is arranged on the third tightening plate 94, and the third tightening column 95 and the third tightening plate 94 are fixed in a threaded mode.
When the machining tool with the third structure is used for clamping a shoe workpiece, firstly, the side end of the shoe workpiece to be machined is abutted to the second base section 91, two sides of the shoe workpiece are abutted to the two third positioning columns 93 respectively, and then the third tightening plate 94 is manually rotated manually, so that the shoe workpiece is tightened by the third tightening plate 94, and the clamping of the shoe workpiece is completed.
S6: and conveying the semi-finished horseshoe product to a second processing device for processing for four times, clamping and fixing the semi-finished horseshoe product through a fourth processing tool in the second processing device, and reaming and flattening each hole of the inner arc surface of the semi-finished horseshoe product by using a cutter in the second processing device after clamping.
As can be seen from the schematic diagram shown in fig. 4, the fourth processing tool includes a fourth processing base horizontally disposed, a fourth supporting seat 5 is installed on the upper end surface of the fourth processing base, the second supporting seat 5 is in an inverted T shape, and an arc-shaped groove attached to the shoe workpiece is formed in the upper end surface of the fourth supporting seat 5.
A fourth positioning column 51 is further respectively arranged on two sides of the fourth supporting seat 5, the fourth positioning column 51 is horizontally arranged, the fourth positioning column 51 is driven by a fourth positioning cylinder 52 to be close to or far away from the fourth processing base, a fourth clamping seat 55 is further arranged beside the fourth supporting seat 5, a fourth clamping cylinder 53 is mounted on the fourth clamping seat 55, a fourth clamping block 54 is connected to the top end of the fourth clamping cylinder 53, and the fourth clamping block 54 is driven by the fourth clamping cylinder 53 to be close to or far away from the fourth supporting seat 5.
When the machining tool with the fourth structure is used for clamping a shoe workpiece, firstly, the shoe workpiece to be machined is placed on the fourth supporting seat 5, the arc-shaped surface of the shoe workpiece is attached to the arc-shaped groove of the fourth supporting seat 5, then the two fourth positioning cylinders 52 push the two fourth positioning columns 51 to move horizontally towards the shoe workpiece to position the shoe workpiece, and finally the fourth clamping cylinder 53 drives the fourth clamping block 54 to move downwards to clamp and fix the position of the shoe workpiece, so that the shoe workpiece is clamped.
S7: and conveying the semi-finished horseshoe product to a fifth processing device for five times of processing, clamping and fixing the semi-finished horseshoe product through a fifth processing tool in the fifth processing device, drilling spring mounting holes in two sides of the semi-finished horseshoe product by using a cutter in the fifth processing device after clamping, and finishing processing.
As can be seen from the schematic diagram shown in fig. 5, the fifth processing tool includes a horizontally disposed fifth processing base 8, a pair of fifth clamping assemblies distributed in parallel is installed on the fifth processing base 8, each fifth clamping assembly includes a fifth central column, a fifth clamping cylinder 81 is installed on the fifth central column, a fifth clamping plate 82 is connected to a top end of the fifth clamping cylinder 81, and the fifth clamping plate 82 is driven by the fifth clamping cylinder 81 to be close to or far from the fifth processing base 8.
Fifth jacking seats 83 are respectively arranged on two sides of the fifth central column, the fifth jacking seats 83 are L-shaped and are directly fixed on the fifth processing base 8, fifth jacking columns 84 extending towards the direction of the fifth central column are arranged on the fifth jacking seats 83, and the fifth jacking columns 84 and the fifth jacking seats 83 are fixed through threads.
The remaining two sides of the fifth central column are respectively provided with a fifth positioning seat 85, two side surfaces of the fifth positioning seat 85, which are close to the two fifth tightening columns 84, are arc-shaped surfaces which are recessed towards the inside of the fifth positioning seat, and the two arc-shaped surfaces of the two fifth positioning seats 85, which are on the same side, are matched together to realize the positioning of the same horseshoe workpiece.
When the machining tool with the fifth structure is used for clamping a shoe workpiece, firstly, the shoe workpiece to be machined is placed on the fifth machining base 8, the arc-shaped surfaces of the shoe workpiece are attached to the two arc-shaped surfaces of the same side of the two fifth positioning seats 85, then the fifth jacking column 84 is manually rotated to move towards the shoe workpiece, the fifth jacking column 84 is used for jacking the shoe workpiece, finally, the fifth clamping cylinder 81 drives the fifth clamping plate 82 to move downwards, the fifth clamping plate 82 is used for clamping the shoe workpiece, and clamping of the shoe workpiece is completed.
Realize the location to the shoe work piece through the arcwall face on two fifth positioning seats 85, the tight seat 83 in rethread fifth top, the fixed of shoe work piece position on the horizontal direction is guaranteed in the cooperation of the tight post 84 in fifth top, at last through fifth clamping cylinder 81, the cooperation of fifth clamp plate 82 comes the rigidity of shoe work piece position on vertical side, whole clamping in-process, need not the clamping that any lug connection can realize the shoe work piece, the clamping, dismantle all very convenience, work efficiency has improved greatly.
According to the processing method, the brake shoe is processed by a fixing mode of punching and welding, five processes of processing and five different processing tools, the whole processing process is simple, the clamping is convenient, the produced brake shoe is simple in structure, light in weight and high in strength, and the development requirement of light weight is met.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A method for machining a core component of a drum brake is characterized in that: comprises the following steps
S1: firstly, preparing parts required by processing a brake shoe, wherein the parts comprise one arc panel, a pair of arc wing plates, two reinforcing pin shafts and a brake shoe reinforcing plate, which form the brake shoe;
s2: welding and fixing the arc-shaped wing plates and the arc-shaped panel in a punching and welding mode, fixing the two arc-shaped wing plates on the inner arc surface of the arc-shaped panel after welding, punching and welding a brake shoe reinforcing plate between the two arc-shaped wing plates, and finally additionally arranging a reinforcing pin shaft between the two arc-shaped wing plates to form a semi-finished shoe product;
s3: the method comprises the following steps of conveying a semi-finished horseshoe product to a first processing device for primary processing, clamping and fixing the semi-finished horseshoe product through a first processing tool in the first processing device, processing the upper end face, the lower end face and the outer arc face of the semi-finished horseshoe product by using a cutter in the first processing device after clamping, processing the upper end face and the lower end face of the semi-finished horseshoe product in two steps, processing the upper end face or the lower end face of the semi-finished horseshoe product, turning the semi-finished horseshoe product, and processing the other end face of the semi-finished horseshoe product;
s4: conveying the semi-finished horseshoe product to a second processing device for secondary processing, clamping and fixing the semi-finished horseshoe product through a second processing tool in the second processing device, and drilling holes in the outer arc surface of the semi-finished horseshoe product by using a cutter in the second processing device after clamping;
s5: conveying the semi-finished horseshoe product to a third processing device for processing for three times, clamping and fixing the semi-finished horseshoe product through a third processing tool in the third processing device, and boring holes in the outer arc surface of the semi-finished horseshoe product by using a cutter in the third processing device after clamping;
s6: conveying the semi-finished horseshoe product to a second processing device for processing for four times, clamping and fixing the semi-finished horseshoe product through a fourth processing tool in the second processing device, and reaming each hole of the inner arc surface of the semi-finished horseshoe product by using a cutter in the second processing device after clamping;
s7: and conveying the horseshoe semi-finished product to a fifth processing device for five times of processing, clamping and fixing the horseshoe semi-finished product through a fifth processing tool in the fifth processing device, drilling spring mounting holes in two sides of the horseshoe semi-finished product by using a cutter in the fifth processing device after clamping, and finishing processing.
2. The method of machining a drum brake core according to claim 1, wherein: the shoe semi-finished product comprises an arc-shaped panel and a pair of arc-shaped wing plates which are distributed on the inner side wall of the arc-shaped panel in parallel, a plurality of first stamping and welding bosses which are distributed in parallel are arranged at the welding position of the arc-shaped wing plates and the arc-shaped panel, and the first stamping and welding bosses are distributed on the side, far away from each other, of the two arc-shaped wing plates;
the semi-finished shoe further comprises a pair of reinforcing pin shafts distributed on two sides of the arc-shaped wing plates and a brake shoe reinforcing plate located between the two arc-shaped wing plates, wherein two through holes for the reinforcing pin shafts to penetrate through are formed in the two arc-shaped wing plates, the brake shoe reinforcing plate is located in the middle of the arc-shaped panel, two sides of the brake shoe reinforcing plate are fixedly welded with the two arc-shaped wing plates in a punching mode respectively, and a plurality of second punching welding bosses distributed in parallel are arranged at the welding position of the brake shoe reinforcing plate and the arc-shaped wing plates.
3. The method of machining a drum brake core according to claim 1, wherein: the first processing tool comprises a first processing base which is horizontally arranged, a first center post is installed at the center of the first processing base, a first clamping plate is connected to the top end of the first center post, four first upper clamping cylinders are installed on the first clamping plate, first upper clamping hooks which correspond to the first upper clamping cylinders one by one are further installed at the bottom end of the first clamping plate, the first upper clamping hooks are hinged to the first clamping plate and driven by the first upper clamping cylinders to swing, four first lower clamping cylinders are further installed at the bottom end of the first processing base, first lower clamping hooks which correspond to the first lower clamping cylinders one by one are further installed on the upper end face of the first processing base, the first lower clamping hooks are hinged to the first processing base and driven by the first lower clamping cylinders to swing, the first upper clamping hooks and the first lower clamping hooks are matched together to clamp a shoe iron workpiece, first positioning assemblies are further installed on two sides of the first processing base, the first positioning assemblies comprise first positioning seats which are installed on the first processing base, first positioning seats are installed on the first processing base, two positioning blocks are symmetrically distributed in a first positioning block group, and the first positioning assemblies are symmetrical to the first positioning blocks, and the first positioning blocks are distributed in a first positioning group, and the first positioning blocks, and the central axis of the first positioning assemblies is distributed symmetrically.
4. The method of machining a drum brake core according to claim 1, wherein: the second machining tool comprises a second machining base horizontally arranged, a second center base is installed at the center of the second machining base, a second center cylinder is installed on the second center base, a second clamping plate is connected to the top end of a piston rod of the second center cylinder, the second clamping plate is close to or far away from the second machining base under the driving of the second center cylinder, second supporting bosses are arranged on two sides of the second center base respectively and are arc-shaped, gaps are reserved between two sides of the two second supporting bosses, a pair of second positioning columns distributed in parallel are further installed at the gaps of the two second supporting bosses, each second positioning column is composed of an upper cylindrical positioning section and a lower cylindrical positioning section which are connected in sequence, the diameter of the positioning section located on the upper side is smaller than that of the positioning section located on the lower side, the two second positioning columns located at the same gap are respectively large and small, the diameter of the second positioning column is larger than that of the second positioning column, and the second positioning columns located in the two gaps are distributed in a large and small size.
5. The method of machining a drum brake core according to claim 1, wherein: the processing tool III comprises a third processing base, the third processing base is formed by connecting a first base section arranged horizontally and a second base section vertically, reinforcing rib plates are connected between the first base section and the second base section, two third positioning columns distributed from top to bottom are installed on the second base section, each third positioning column is formed by connecting two third positioning sections distributed horizontally in parallel, one third positioning section is connected with the second base section, the diameter of the third positioning section connected with the second base section is larger than that of the other third positioning section, a third jacking plate is further arranged between the two third positioning columns, and a third jacking column is installed on the third jacking plate.
6. The method of machining a drum brake core according to claim 1, wherein: the fourth processing base that processing frock fourth set up including a level installs a fourth supporting seat on the up end of fourth processing base, has an arc recess of laminating mutually with the horseshoe work piece on the up end of fourth supporting seat, the both sides of fourth supporting seat still are provided with a fourth reference column respectively, the fourth reference column is close to or keeps away from fourth processing base by the drive of fourth location jar, still is provided with the tight seat of fourth clamp at the side of fourth supporting seat, installs the tight jar of fourth clamp on the tight seat of fourth clamp, the top that the tight jar of fourth clamp is connected with a tight piece of fourth clamp, and the tight piece of fourth clamp is close to or keeps away from the fourth supporting seat by the drive of the tight jar of fourth clamp.
7. The method of machining a drum brake core according to claim 1, wherein: the processing tool fifth comprises a fifth processing base which is horizontally arranged, a pair of fifth clamping assemblies which are distributed in parallel are mounted on the fifth processing base, each fifth clamping assembly comprises a fifth central column, fifth clamping cylinders are mounted on the fifth central columns, the top ends of the fifth clamping cylinders are connected with a fifth clamping plate, the fifth clamping plates are driven by the fifth clamping cylinders to be close to or far away from the fifth processing base, fifth jacking seats are respectively mounted on two sides of the fifth central columns, fifth jacking columns extending towards the direction of the fifth central columns are mounted on the fifth jacking seats, fifth positioning seats are respectively mounted on the two remaining sides of the fifth central columns, two side faces, close to the two fifth jacking columns, of the fifth positioning seats are arc-shaped faces sunken towards the inner parts of the fifth positioning seats, and the two arc-shaped faces on the same side of the two fifth positioning seats are matched together to position the same horseshoe workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111632127.1A CN114473397B (en) | 2021-12-29 | 2021-12-29 | Method for machining core component of drum brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111632127.1A CN114473397B (en) | 2021-12-29 | 2021-12-29 | Method for machining core component of drum brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114473397A CN114473397A (en) | 2022-05-13 |
| CN114473397B true CN114473397B (en) | 2023-02-21 |
Family
ID=81495696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111632127.1A Active CN114473397B (en) | 2021-12-29 | 2021-12-29 | Method for machining core component of drum brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114473397B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116713678B (en) * | 2023-08-10 | 2023-10-10 | 常州市鹏瑞自动化设备有限公司 | Automatic positioning compensation clamp for automobile brake shoe |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5828433A (en) * | 1981-07-29 | 1983-02-19 | ザ・ベンデイクス・コ−ポレ−シヨン | Manufacture of drum brake shoe |
| CN103148128A (en) * | 2013-03-21 | 2013-06-12 | 江苏汤臣汽车零部件有限公司 | Light brake backing plate and manufacturing process thereof |
| CN103148130A (en) * | 2013-03-21 | 2013-06-12 | 江苏汤臣汽车零部件有限公司 | Light horse shoe and manufacturing process thereof |
| CN207139169U (en) * | 2017-08-30 | 2018-03-27 | 山东力得制动科技有限公司 | A kind of truck drum brake punching-welding shoe iron welds special fixture |
| CN207710197U (en) * | 2017-12-25 | 2018-08-10 | 山东力得制动科技有限公司 | A kind of welding brake punching-welding shoe iron inclination web swinging built-up jig |
| CN113634937A (en) * | 2021-08-02 | 2021-11-12 | 中国水利水电夹江水工机械有限公司 | Brake disc partitioning and tailor-welding method |
-
2021
- 2021-12-29 CN CN202111632127.1A patent/CN114473397B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5828433A (en) * | 1981-07-29 | 1983-02-19 | ザ・ベンデイクス・コ−ポレ−シヨン | Manufacture of drum brake shoe |
| CN103148128A (en) * | 2013-03-21 | 2013-06-12 | 江苏汤臣汽车零部件有限公司 | Light brake backing plate and manufacturing process thereof |
| CN103148130A (en) * | 2013-03-21 | 2013-06-12 | 江苏汤臣汽车零部件有限公司 | Light horse shoe and manufacturing process thereof |
| CN207139169U (en) * | 2017-08-30 | 2018-03-27 | 山东力得制动科技有限公司 | A kind of truck drum brake punching-welding shoe iron welds special fixture |
| CN207710197U (en) * | 2017-12-25 | 2018-08-10 | 山东力得制动科技有限公司 | A kind of welding brake punching-welding shoe iron inclination web swinging built-up jig |
| CN113634937A (en) * | 2021-08-02 | 2021-11-12 | 中国水利水电夹江水工机械有限公司 | Brake disc partitioning and tailor-welding method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114473397A (en) | 2022-05-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114473397B (en) | Method for machining core component of drum brake | |
| CN201900472U (en) | Lathe fixture used for processing cylinder body slot holes of disc brake | |
| CN203579089U (en) | Welding fixture for bogie cross beam of railway vehicle | |
| CN105382581B (en) | Milling fixture for inner side surface of rear lifting lug of steel plate spring and clamping method for rear lifting lug of steel plate spring | |
| CN109623412A (en) | A kind of combination drilling tool and equipment applied to balance shaft supporting block | |
| CN106670811A (en) | Multi-station drilling and milling machine tool | |
| CN205184145U (en) | Hook tail frame welding upset frock | |
| CN202461591U (en) | Special machine tool for balance shaft bracket boring tooling | |
| CN211708167U (en) | Steel drilling tool with drill bit replacing structure | |
| CN117300696A (en) | Clamp for milling caterpillar link | |
| CN109623411B (en) | Be applied to frock and equipment of leaf spring lug support | |
| CN109623413A (en) | A kind of combination drilling tool and equipment applied to air chamber support | |
| CN207309442U (en) | A kind of steering gear housing boring jig that can quickly remodel | |
| CN209886994U (en) | Rapid welding tool for elevator bottom beam | |
| CN108637755B (en) | One-position two-sequence hydraulic clamp of knuckle horizontal milling machine and application method thereof | |
| CN208662939U (en) | Lower free bearing welding positioner | |
| CN218400102U (en) | Thrust rod support assembly and vehicle | |
| CN204277599U (en) | For the fixture of car pillar bush hole | |
| CN216541895U (en) | Vertical machining center lathe line rail | |
| CN212600395U (en) | Efficient automobile front cross beam mass block clamp | |
| CN219901191U (en) | Clamp for machining steel structure beam | |
| CN217551168U (en) | High-precision turning tool for cross axle frame | |
| CN216178545U (en) | Floating V-shaped machining tool for rear axle of mine car | |
| CN214297311U (en) | Universal transport frame of heavy planetary reducer | |
| CN219104345U (en) | Transmission shaft assembly clamping mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |